Contact Us / Donate Secret Witness of Shasta County, Inc. To make a tax-free donation, make out a check to “Secret Witness of Shasta County, Inc.” and mail to:PO Box 493204Redding CA 96049 530-243-2319(24 hour unrecorded phone line) For business communications, use admin@scsecretwitness.com. For all tips, use the Tip Submission form.